Practice Multiple Choice Questions for the Chemistry Final Exam
... 65. The reaction Mg(s) + 2HCI(aq) H2(g) + MgCl2(aq) is a a) composition reaction b) decomposition reaction. c) single-replacement reaction. d) double-replacement reaction. 66. The reaction Pb(NO3)2(aq) + 2KI(aq) PbI2(S) + 2KNO3(aq) is a a) double-replacement reaction. b) synthesis reaction. c) d ...
... 65. The reaction Mg(s) + 2HCI(aq) H2(g) + MgCl2(aq) is a a) composition reaction b) decomposition reaction. c) single-replacement reaction. d) double-replacement reaction. 66. The reaction Pb(NO3)2(aq) + 2KI(aq) PbI2(S) + 2KNO3(aq) is a a) double-replacement reaction. b) synthesis reaction. c) d ...
C2 - Science Curriculum
... Non-polar examples: If the central atom of a structural formula is surrounded by the same atoms and the molecule is symmetrical, or if two of the same atoms are bonded to each other, the electrons are distributed evenly then the molecule is non-polar. ...
... Non-polar examples: If the central atom of a structural formula is surrounded by the same atoms and the molecule is symmetrical, or if two of the same atoms are bonded to each other, the electrons are distributed evenly then the molecule is non-polar. ...
Ionic bonds
... Ionic bonds = attractions between ions of opposite charge (e.g. table salt, NaCl). Much weaker than covalent bonds. •When atoms of chlorine and sodium collide, chlorine atom strips sodium’s outer electron away. This results in sodium having a positive charge and chlorine having a negative charge. Tw ...
... Ionic bonds = attractions between ions of opposite charge (e.g. table salt, NaCl). Much weaker than covalent bonds. •When atoms of chlorine and sodium collide, chlorine atom strips sodium’s outer electron away. This results in sodium having a positive charge and chlorine having a negative charge. Tw ...
Students know
... A. Because the gas molecules are too small to be affected by the increase in heat. B. Because the gas molecules are too hard to stir and heating is just like stirring on the molecular level. C. Gas molecules move faster when heated and this causes them to move out of the solution so they don’t disso ...
... A. Because the gas molecules are too small to be affected by the increase in heat. B. Because the gas molecules are too hard to stir and heating is just like stirring on the molecular level. C. Gas molecules move faster when heated and this causes them to move out of the solution so they don’t disso ...
Outline for Chemistry of Life
... In living things the ions dissolve and exist as separate ions (these ions are sometimes called electrolytes) fig. 2.7 p. 23 ...
... In living things the ions dissolve and exist as separate ions (these ions are sometimes called electrolytes) fig. 2.7 p. 23 ...
7.2 Writing Chemical Equations
... As reactants are changed into products, bonds that hold atoms together are broken and new bonds are formed. The atoms themselves are neither created nor destroyed (the law of conservation of mass) ...
... As reactants are changed into products, bonds that hold atoms together are broken and new bonds are formed. The atoms themselves are neither created nor destroyed (the law of conservation of mass) ...
AP Syllabus 95-96 - Bremen High School District 228
... Advanced Placement Chemistry is designed to be the equivalent of the general chemistry course usually taken during the first year of college. Students should attain an understanding of the fundamental principles of chemistry appropriate for this level. They should also achieve competence in using ca ...
... Advanced Placement Chemistry is designed to be the equivalent of the general chemistry course usually taken during the first year of college. Students should attain an understanding of the fundamental principles of chemistry appropriate for this level. They should also achieve competence in using ca ...
worksheet Ka Kb buffers Ksp
... For each of the following questions, label them as either thermodynamic or kinetic concepts. a. Can substances react when they are put together? b. If a reaction occurs, how fast will it occur? c. What is the mechanism by which the reaction occurs? d. If substances react, what energy changes are ass ...
... For each of the following questions, label them as either thermodynamic or kinetic concepts. a. Can substances react when they are put together? b. If a reaction occurs, how fast will it occur? c. What is the mechanism by which the reaction occurs? d. If substances react, what energy changes are ass ...
CHEM 20 FINAL EXAM: STUDY HEADINGS Jan 2012
... molecular bonds: sigma and pi bonds; delocalized pi bonds in benzene, C6H6 determining and indicating direction of dipole within a covalent bond predicting the polarity of molecules from dipole moments and molecular geometry intermolecular forces: van der waals, hydrogen bonding, dispersion forces, ...
... molecular bonds: sigma and pi bonds; delocalized pi bonds in benzene, C6H6 determining and indicating direction of dipole within a covalent bond predicting the polarity of molecules from dipole moments and molecular geometry intermolecular forces: van der waals, hydrogen bonding, dispersion forces, ...
ppt
... • compare the energy changes of different substances, perform calorimetry calculations, and describe the relationship between reactions using enthalpy terms. • represent thermochemical equations using different methods, and determine whether a reaction is exothermic or endothermic • calculate and us ...
... • compare the energy changes of different substances, perform calorimetry calculations, and describe the relationship between reactions using enthalpy terms. • represent thermochemical equations using different methods, and determine whether a reaction is exothermic or endothermic • calculate and us ...
Thermochem ppt
... • compare the energy changes of different substances, perform calorimetry calculations, and describe the relationship between reactions using enthalpy terms. • represent thermochemical equations using different methods, and determine whether a reaction is exothermic or endothermic • calculate and us ...
... • compare the energy changes of different substances, perform calorimetry calculations, and describe the relationship between reactions using enthalpy terms. • represent thermochemical equations using different methods, and determine whether a reaction is exothermic or endothermic • calculate and us ...
Open questions (66 points total
... Kp. Also indicate the unit of Kp. 2p 17 How does the value of equilibrium constant Kp change with temperature? The industrial production can take place without a catalyst at atmospheric pressure and high temperature. At equilibrium, usually 0.20 volume% methane gas remains. 7p 18 Calculate the v ...
... Kp. Also indicate the unit of Kp. 2p 17 How does the value of equilibrium constant Kp change with temperature? The industrial production can take place without a catalyst at atmospheric pressure and high temperature. At equilibrium, usually 0.20 volume% methane gas remains. 7p 18 Calculate the v ...
The separation, purification and identification of the components of a
... (D) A sample should be packed tightly into a capillary m.p. tube. ...
... (D) A sample should be packed tightly into a capillary m.p. tube. ...